The Galaxy visualization component does not install automatically. You will need to run the following commands in terminal mode:
NOTE: The following assumes /galaxy-central is the home directory for your Galaxy instance, otherwise replace /galaxy-central with your Galaxy instance's root directory

For troubleshooting help with the install, try contacting the tool authors. They will know best about how to configure the tool to work in a local Galaxy. Or you could first try following the instructions for the related heat_map_creation_advanced tool instead -- it includes more help plus a video. If that does not clear things up, then contacting the authors is the next step.

How-to: Log into the ToolShed https://usegalaxy.org/toolshed (create an account if needed), navigate to the tool, and in the upper right corner will be a menu named "Repository Actions". One of the options is to contact the repository owner.